Spool for perforated music-rolls.



G. H. DAVIS.

SPOOL FOR PERPORATED MUSIC ROLLS.

APPLICATION FILED 312.27, 1909.

1,034,086. Patented'July 30,1912

ATTORNEYS W /kfmm GEORGE HOWLE'I'T DAVIS, OF WEST ORANGE, NEW JERSEY.

SPOOL FOR PERFORATEI) MUSIC-ROLLS.

Specification of Letters Patent.

Patented July 30, 1912.

Application filed February 27, 1909. Serial No. 480,307.

To all whom, it may concern:

Be it known that I, GEORGE HowLETT DAVIS, a citizen of the UnitedStates, residing in the town of West Orange, county of Essex, and Stateof New Jersey, have in vented new and useful Improvements in Spools forPerforated Music-Rolls, of which the following is a full, clear, and

exact description, such as will enable others skilled in the art towhich it pertains to make, construct, and use the same, reference belnghad to the accompanying drawings hereln.

My invention relates to that class of. spools which is designed to carrythe perforated strip, ordinarily used in automatic or player pianos, andhas forits specific object the adaptation of a spool of greater lengthto the present standard bearings, commonly used in automatic or playerpianos. These bearings for standard player pianos have almost universalcharacteristics, as-to dimensions, distance apart, and details ofconstructlons, and are deslgned to carry perforated music rolls, foreither what is known as a 58 note or 65 note player. Recent work alongthis line, among the manufacturers of player pianos, has developed ademand for a wider standard of roll, and music rolls are now being'made.

rolls may be used upon the wider or larger standard player pianos.

The use of the 88 note roll has necessitated a change in theconstruction of the spool upon which the roll is mounted, in order toadapt it to the old bearings and at the same time provide a wider rollof paper to cover the 88 apertures in the tracker board, and it is toaccomplish this adaptation of the 88 note music roll to present standardconditions, that my present invention is directed; and at the same timein the constructions of such music roll spool to reduce the actualnumber of parts to a minimum, so that the complete structure.

may be at the same time durable and of inexpensive constructlon.

Figure 1, is the plan view of my improved music roll spool, mounted inbearings of the usual type connected with a player piano. Fig. 2, is asectional plan view ofboth spool and bearings. Fig. 3, is an end view ofthe left-hand flange of the spool. Fig. 4, is a view of the right-handflange of the spool. Fig. 5, is a section on line m--m of Fig. 4.

In carrying out my invention, I make use of the devices hereinafterdescribed.

In Fig. 1, as above stated, I have shown a plan view of so much of thesupporting frame for the bearings, as is necessary to illustrate theirconnection with my improvement. l

1, 1 represent-s the side rails or frames which form a part of the pianoframe structure. These side frames, 1, 1, carry the bearings 2, 3, whichsupport the pivots for the music roll proper. These bearings may be ofany desired or usual structure; those illustrated being the ones incommon use. The bearing, 2, consists of the flanged sleeve as shown inFig. 2, which is secured to the side of the frame 1, by means of screws.As illustrated, the sleeve portion enters a cylindrical aperture throughthe side frame 1. Vithin this sleeve bearing is located a spindle 4,said spindle being provided with a collar 5, secured thereto by means ofthe set screw 6. From this set screw 6, the spring 7 extends and has itsopposite end connected in any convenient manner either to the frame 1,or to the flange of the sleeve bearing 2. The inner end of this sleevebearing is provided with a sleeve collar 8, rigidly connected to thespindle 4, said sleeve collar being counterbored as at 9, to receive aloose bearing or spindle socket 10. Said spindle socket is held inposition within the counterbored portion of the sleeve collar by meansof the set screw 11, which runs in a groove 12, located in thecircumference of said spindle socket 10. The exposed end of the spindlesocket is provided with an exterior collar portion 18, and an axialspindle socket proper 14, said socket 14, being designed to receive theordinary spindle of a 58 or 65 note spool. The opposite bearing 3,consists of the ordinary sleeve,,as shown, set into the frame or sidepiece 1, and it .forms a bearing for the live spindle 15,

from which the spool hereinafter more specifically described, is driven.The inner end of the spindle 15, is provided with a head 16, slotted at17, to receive a thimble 18,

said thimble being provided with a cross pin 19 which takes into theslot 17 When this thimble 18 is removed, the standard music roll spoolcan be inserted into the socket 14 of the bearing of the opposite side,with the wing pivot of the spool inserted in the slot 17 Thus, it willbe seen that the bearings for the improved spool need not be changed inany particular, and allthat is required in addition thereto istheprovision of the thimble 18.

I will now proceed to describe my improved spool. A is the body of thespool proper, and consists of a cylindrical piece of wood provided atthe right-hand end with a reduced portion, 13. to receive the end flangeG. This reduced portion B is made a trifle longer than the thickness ofthe flange C, if desired, so that a small adjustment may be provided forthe effective length of the spool which carries the perforated roll. Theflange C, as indicated in Fig. 4,,has a central aperture which takesover the reduced portion B of the spool body A.

In order to provide against the relative rotation of the flange C andthe spool body A, I provide in the spool body, a diametrical slot D,said slot running into the spool body A to some distance, as clearlyshown in Fig. 2.

Inserted into the inner side of the flange C, and diametrically acrossthe aperture .therethrough, is the cross piece E, said cross piece beingreceived into the slot D, and when so positioned, prevents the relativerotation of the flange C and the spool body A.

In some cases, if desired, instead of providing the slight adjustmentfor this end of the spool, I may dispense with the cross piece E. Underthese circumstances, the flange C may be rigidly secured to the spoolbody A, by gluing the same thereto.

The spool body A, as shown in Fig.2, is made up of two parts, the mainbody, and the adjustable end A The part A is of the same diameter as themain body A, and secured to the said main body A by means of the wingscrew F, which passes axially through the adjusting part A and into themain body A, as clearly shown in Fig. 2. This adjusting part A has thereduced portion A to receive the flange G, said flange being rigidlysecured as to said reduced portion by means of glue. The outer end ofthe adjusting part A is provided with a frusto-conical, countersunkcavity 21, to receive the frusto-conical end 13 of the spindle bearing10.

The purpose of the adjusting end A is to vary the distance between theflanges Gr and C. It is well known, that the paper of which theperforated music roll is made is subject to contraction and expansionthrough changes of temperature and humidity in the atmosphere. In order,however, to correctly render a plece of music by means of the perforatedmusic roll, such roll must track perfectly over the tracker board, and

in order to track perfectly, it must run evenly between flanges of thespool, so that it becomes necessary that the flanges be, adjusted to adistance apart equal to the exact width of the paper, either in itscontracted or expanded condition. It becomes necessary, therefore, toprovide some means for adjusting this distance, and, I have chosen thesame means herein, that are described and claimed in my prior Patent No.893,571, dated July 14, 1908.

By the above described improved spool, it willbe noted that I haveutilized a greater portion of the space between the spindle bearings 2and 3, for the actual width of the music roll, and by so doing, I amenabled to use a wider paper and consequently provide for the, newstandard 88 note music, and this I have been able to accomplish withoutin any manner changing the old bearings nor their distance apart, thusleaving them in proper shape to receive the spindle or spools carrying58 note or 65 note music rolls.

I claim:

1. In a music roll spool, a cylindrical spool body comprising twosections. in adjustable alinement with each other, a frustoconicalsocket in one end of said body, and a slotted socket in the opposite endof said body, and spool flanges upon the ends of said body, one of saidflanges being adj ustable longitudinally of said body.

2. In a music roll spool the combination of a cylindrical spool body,having a diametrical slotin one end thereof, an apertured flange fittedover said slotted end, and a diametrical cross piece secured in theaperture of said flange and fitted into the slot of said end to preventrelative rotation between said flange and body.

3. In a music roll spool the combination of a cylindrical spool bodyhaving a frustoconical socket in one of its ends and a diametrical slotin its other end, apertured flanges secured to each end of said body oneof said flanges being longitudinally adjustable upon said body.

4. In a music roll spool the combination of a spool body having aconical socket in one of its ends and a diametrical slot in its otherend, a flange secured to each end of said body, one of said flangesbeing longitudinally adjustable upon said body.

GEORGE I-IOWLETT DAVIS.

Witnesses:

R. D. EVANS, LoUIs M. SANDERS.

cqpies of this patent may be obtained for five cents each, by addressingthe Commissioner of Eatents,

Washington, D. G.

